/**
 * Copyright (c) Huawei Technologies Co., Ltd. 2025. All rights reserved.
 * This file is a part of the CANN Open Software.
 * Licensed under CANN Open Software License Agreement Version 1.0 (the "License").
 * Please refer to the License for details. You may not use this file except in compliance with the License.
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.
 * See LICENSE in the root of the software repository for the full text of the License.
 */

/**
 * @file main.cpp
 */
#include <algorithm>
#include <cstdint>
#include <iostream>
#include <vector>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fstream>
#include <fcntl.h>

#include "acl/acl.h"
#include "aclnn_token_shift.h"

#define SUCCESS 0
#define FAILED 1

#define INFO_LOG(fmt, args...) fprintf(stdout, "[INFO]  " fmt "\n", ##args)
#define WARN_LOG(fmt, args...) fprintf(stdout, "[WARN]  " fmt "\n", ##args)
#define ERROR_LOG(fmt, args...) fprintf(stderr, "[ERROR]  " fmt "\n", ##args)

#define CHECK_RET(cond, return_expr) \
    do {                             \
        if (!(cond)) {               \
            return_expr;             \
        }                            \
    } while (0)

#define LOG_PRINT(message, ...)         \
    do {                                \
        printf(message, ##__VA_ARGS__); \
    } while (0)

bool ReadFile(const std::string &filePath, size_t fileSize, void *buffer, size_t bufferSize)
{
    struct stat sBuf;
    int fileStatus = stat(filePath.data(), &sBuf);
    if (fileStatus == -1) {
        ERROR_LOG("failed to get file %s", filePath.c_str());
        return false;
    }
    if (S_ISREG(sBuf.st_mode) == 0) {
        ERROR_LOG("%s is not a file, please enter a file", filePath.c_str());
        return false;
    }

    std::ifstream file;
    file.open(filePath, std::ios::binary);
    if (!file.is_open()) {
        ERROR_LOG("Open file failed. path = %s", filePath.c_str());
        return false;
    }

    std::filebuf *buf = file.rdbuf();
    size_t size = buf->pubseekoff(0, std::ios::end, std::ios::in);
    if (size == 0) {
        ERROR_LOG("file size is 0");
        file.close();
        return false;
    }
    if (size > bufferSize) {
        ERROR_LOG("file size is larger than buffer size");
        file.close();
        return false;
    }
    buf->pubseekpos(0, std::ios::in);
    buf->sgetn(static_cast<char *>(buffer), size);
    fileSize = size;
    file.close();
    return true;
}

bool WriteFile(const std::string &filePath, const void *buffer, size_t size)
{
    if (buffer == nullptr) {
        ERROR_LOG("Write file failed. buffer is nullptr");
        return false;
    }

    int fd = open(filePath.c_str(), O_RDWR | O_CREAT | O_TRUNC, S_IRUSR | S_IWRITE);
    if (fd < 0) {
        ERROR_LOG("Open file failed. path = %s", filePath.c_str());
        return false;
    }

    auto writeSize = write(fd, buffer, size);
    (void) close(fd);
    if (writeSize != size) {
        ERROR_LOG("Write file Failed.");
        return false;
    }

    return true;
}

int64_t GetShapeSize(const std::vector<int64_t> &shape)
{
    int64_t shapeSize = 1;
    for (auto i : shape) {
        shapeSize *= i;
    }
    return shapeSize;
}

int Init(int32_t deviceId, aclrtStream *stream)
{
    // 固定写法，acl初始化
    auto ret = aclInit(nullptr);
    CHECK_RET(ret == ACL_SUCCESS, LOG_PRINT("aclInit failed. ERROR: %d\n", ret); return FAILED);
    ret = aclrtSetDevice(deviceId);
    CHECK_RET(ret == ACL_SUCCESS, LOG_PRINT("aclrtSetDevice failed. ERROR: %d\n", ret); return FAILED);
    ret = aclrtCreateStream(stream);
    CHECK_RET(ret == ACL_SUCCESS, LOG_PRINT("aclrtCreateStream failed. ERROR: %d\n", ret); return FAILED);

    return SUCCESS;
}

template <typename T>
int CreateAclTensor(const std::vector<T> &hostData, const std::vector<int64_t> &shape, void **deviceAddr,
                    aclDataType dataType, aclTensor **tensor)
{
    auto size = GetShapeSize(shape) * sizeof(T);
    // 调用aclrtMalloc申请device侧内存
    auto ret = aclrtMalloc(deviceAddr, size, ACL_MEM_MALLOC_HUGE_FIRST);
    CHECK_RET(ret == ACL_SUCCESS, LOG_PRINT("aclrtMalloc failed. ERROR: %d\n", ret); return FAILED);

    // 调用aclrtMemcpy将host侧数据拷贝到device侧内存上
    ret = aclrtMemcpy(*deviceAddr, size, hostData.data(), size, ACL_MEMCPY_HOST_TO_DEVICE);
    CHECK_RET(ret == ACL_SUCCESS, LOG_PRINT("aclrtMemcpy failed. ERROR: %d\n", ret); return FAILED);

    // 调用aclCreateTensor接口创建aclTensor
    *tensor = aclCreateTensor(shape.data(), shape.size(), dataType, nullptr, 0, aclFormat::ACL_FORMAT_ND, shape.data(),
                            shape.size(), *deviceAddr);
    return SUCCESS;
}

int main(int argc, char **argv)
{
    // 1. （固定写法）device/stream初始化, 参考acl对外接口列表
    // 根据自己的实际device填写deviceId
    int32_t deviceId = 0;
    aclrtStream stream;
    auto ret = Init(deviceId, &stream);
    CHECK_RET(ret == 0, LOG_PRINT("Init acl failed. ERROR: %d\n", ret); return FAILED);

    // 2. 构造输入与输出，需要根据API的接口自定义构造
    std::vector<int64_t> inputXShape = {17, 1, 2560};
    std::vector<int64_t> inputrwkvagShape = {6, 1, 1, 2560};
    std::vector<int64_t> inputh0Shape = {17, 1, 2560};
    std::vector<int64_t> outputXShape = {17, 1, 2560};
    std::vector<int64_t> outputhtShape = {17, 1, 2560};
    void *inputXDeviceAddr = nullptr;
    void *inputrwkvagDeviceAddr = nullptr;
    void *inputh0DeviceAddr = nullptr;
    void *outputXRDeviceAddr = nullptr;
    void *outputXWDeviceAddr = nullptr;
    void *outputXKDeviceAddr = nullptr;
    void *outputXVDeviceAddr = nullptr;
    void *outputXADeviceAddr = nullptr;
    void *outputXGDeviceAddr = nullptr;
    void *outputhtDeviceAddr = nullptr;
    aclTensor *inputX = nullptr;
    aclTensor *inputrwkvag = nullptr;
    aclTensor *inputh0 = nullptr;
    aclTensor *outputXR = nullptr;
    aclTensor *outputXW = nullptr;
    aclTensor *outputXK = nullptr;
    aclTensor *outputXV = nullptr;
    aclTensor *outputXA = nullptr;
    aclTensor *outputXG = nullptr;
    aclTensor *outputht = nullptr;
    size_t inputShapeSize_1 = inputXShape[0] * inputXShape[1] * inputXShape[2];
    size_t inputShapeSize_2 = inputrwkvagShape[0] * inputrwkvagShape[1] * inputrwkvagShape[2] * inputrwkvagShape[3];
    size_t inputShapeSize_3 = inputh0Shape[0] * inputh0Shape[1] * inputh0Shape[2];
    size_t outputXShapeSize_1 = outputXShape[0] * outputXShape[1] * outputXShape[2];
    size_t outputhtShapeSize_1 = outputhtShape[0] * outputhtShape[1] * outputhtShape[2];
    size_t dataType = 2;
    std::vector<aclFloat16> inputXHostData(inputShapeSize_1);
    std::vector<aclFloat16> inputrwkvagHostData(inputrwkvagShape[0] * inputrwkvagShape[1] * inputrwkvagShape[2] * inputrwkvagShape[3]);
    std::vector<aclFloat16> inputh0HostData(inputh0Shape[0] * inputh0Shape[1] * inputh0Shape[2]);
    std::vector<aclFloat16> outputXRHostData(outputXShapeSize_1);
    std::vector<aclFloat16> outputXWHostData(outputXShapeSize_1);
    std::vector<aclFloat16> outputXKHostData(outputXShapeSize_1);
    std::vector<aclFloat16> outputXVHostData(outputXShapeSize_1);
    std::vector<aclFloat16> outputXAHostData(outputXShapeSize_1);
    std::vector<aclFloat16> outputXGHostData(outputXShapeSize_1);
    std::vector<aclFloat16> outputhtHostData(outputhtShape[0] * outputhtShape[1] * outputhtShape[2]);

    size_t fileSize = 0;
    void** input1 = (void**)(&inputXHostData);
    void** input2 = (void**)(&inputrwkvagHostData);
    void** input3 = (void**)(&inputh0HostData);

    //读取数据
    ReadFile("../input/input_x.bin", fileSize, *input1, inputShapeSize_1 * dataType);
    ReadFile("../input/input_rwkvag.bin", fileSize, *input2, inputShapeSize_2 * dataType);
    ReadFile("../input/input_h0.bin", fileSize, *input3, inputShapeSize_3 * dataType);
    INFO_LOG("Set input success");
    // 创建input aclTensor
    ret = CreateAclTensor(inputXHostData, inputXShape, &inputXDeviceAddr, aclDataType::ACL_FLOAT16, &inputX);
    CHECK_RET(ret == ACL_SUCCESS, return FAILED);

    ret = CreateAclTensor(inputrwkvagHostData, inputrwkvagShape, &inputrwkvagDeviceAddr, aclDataType::ACL_FLOAT16, &inputrwkvag);
    CHECK_RET(ret == ACL_SUCCESS, return FAILED);  

    ret = CreateAclTensor(inputh0HostData, inputh0Shape, &inputh0DeviceAddr, aclDataType::ACL_FLOAT16, &inputh0);
    CHECK_RET(ret == ACL_SUCCESS, return FAILED);        
    // 创建output aclTensor
    ret = CreateAclTensor(outputXRHostData, outputXShape, &outputXRDeviceAddr, aclDataType::ACL_FLOAT16, &outputXR);
    CHECK_RET(ret == ACL_SUCCESS, return FAILED);
    ret = CreateAclTensor(outputXWHostData, outputXShape, &outputXWDeviceAddr, aclDataType::ACL_FLOAT16, &outputXW);
    CHECK_RET(ret == ACL_SUCCESS, return FAILED);
    ret = CreateAclTensor(outputXKHostData, outputXShape, &outputXKDeviceAddr, aclDataType::ACL_FLOAT16, &outputXK);
    CHECK_RET(ret == ACL_SUCCESS, return FAILED);
    ret = CreateAclTensor(outputXVHostData, outputXShape, &outputXVDeviceAddr, aclDataType::ACL_FLOAT16, &outputXV);
    CHECK_RET(ret == ACL_SUCCESS, return FAILED);
    ret = CreateAclTensor(outputXAHostData, outputXShape, &outputXADeviceAddr, aclDataType::ACL_FLOAT16, &outputXA);
    CHECK_RET(ret == ACL_SUCCESS, return FAILED);
    ret = CreateAclTensor(outputXGHostData, outputXShape, &outputXGDeviceAddr, aclDataType::ACL_FLOAT16, &outputXG);
    CHECK_RET(ret == ACL_SUCCESS, return FAILED);
    
    ret = CreateAclTensor(outputhtHostData, outputhtShape, &outputhtDeviceAddr, aclDataType::ACL_FLOAT16, &outputht);
    CHECK_RET(ret == ACL_SUCCESS, return FAILED);    
    // 3. 调用CANN自定义算子库API

    uint64_t workspaceSize = 0;
    aclOpExecutor *executor;
    // 计算workspace大小并申请内存
    ret = aclnnTokenShiftGetWorkspaceSize(inputX, inputrwkvag, inputh0,
                                          outputXR, outputXW, outputXK, outputXV, outputXA, outputXG, outputht, &workspaceSize, &executor);
    CHECK_RET(ret == ACL_SUCCESS, LOG_PRINT("aclnnTokenShiftGetWorkspaceSize failed. ERROR: %d\n", ret); return FAILED);
    void *workspaceAddr = nullptr;
    if (workspaceSize > 0) {
        ret = aclrtMalloc(&workspaceAddr, workspaceSize, ACL_MEM_MALLOC_HUGE_FIRST);
        CHECK_RET(ret == ACL_SUCCESS, LOG_PRINT("allocate workspace failed. ERROR: %d\n", ret); return FAILED;);
    }
    // 执行算子
    ret = aclnnTokenShift(workspaceAddr, workspaceSize, executor, stream);
    CHECK_RET(ret == ACL_SUCCESS, LOG_PRINT("aclnnTokenShift failed. ERROR: %d\n", ret); return FAILED);

    // 4. （固定写法）同步等待任务执行结束
    ret = aclrtSynchronizeStream(stream);
    CHECK_RET(ret == ACL_SUCCESS, LOG_PRINT("aclrtSynchronizeStream failed. ERROR: %d\n", ret); return FAILED);

    // 5. 获取输出的值，将device侧内存上的结果拷贝至host侧，需要根据具体API的接口定义修改
    auto size = GetShapeSize(outputXShape);
    std::vector<aclFloat16> resultData1(size, 0);
    ret = aclrtMemcpy(resultData1.data(), resultData1.size() * sizeof(resultData1[0]), outputXRDeviceAddr,
                    size * sizeof(aclFloat16), ACL_MEMCPY_DEVICE_TO_HOST);
    CHECK_RET(ret == ACL_SUCCESS, LOG_PRINT("copy result from device to host failed. ERROR: %d\n", ret); return FAILED);
    void** output1 = (void**)(&resultData1);
    //写出数据
    WriteFile("../output/output_xr.bin", *output1, outputXShapeSize_1 * dataType);
    INFO_LOG("Write output1 success");

    std::vector<aclFloat16> resultData2(size, 0);
    ret = aclrtMemcpy(resultData2.data(), resultData2.size() * sizeof(resultData2[0]), outputXWDeviceAddr,
                    size * sizeof(aclFloat16), ACL_MEMCPY_DEVICE_TO_HOST);
    CHECK_RET(ret == ACL_SUCCESS, LOG_PRINT("copy result from device to host failed. ERROR: %d\n", ret); return FAILED);
    void** output2 = (void**)(&resultData2);
    //写出数据
    WriteFile("../output/output_xw.bin", *output2, outputXShapeSize_1 * dataType);
    INFO_LOG("Write output2 success");
    
    std::vector<aclFloat16> resultData3(size, 0);
    ret = aclrtMemcpy(resultData3.data(), resultData3.size() * sizeof(resultData3[0]), outputXKDeviceAddr,
                    size * sizeof(aclFloat16), ACL_MEMCPY_DEVICE_TO_HOST);
    CHECK_RET(ret == ACL_SUCCESS, LOG_PRINT("copy result from device to host failed. ERROR: %d\n", ret); return FAILED);
    void** output3 = (void**)(&resultData3);
    //写出数据
    WriteFile("../output/output_xk.bin", *output3, outputXShapeSize_1*dataType);
    INFO_LOG("Write output3 success");

    std::vector<aclFloat16> resultData4(size, 0);
    ret = aclrtMemcpy(resultData4.data(), resultData4.size() * sizeof(resultData4[0]), outputXVDeviceAddr,
                    size * sizeof(aclFloat16), ACL_MEMCPY_DEVICE_TO_HOST);
    CHECK_RET(ret == ACL_SUCCESS, LOG_PRINT("copy result from device to host failed. ERROR: %d\n", ret); return FAILED);
    void** output4 = (void**)(&resultData4);
    //写出数据
    WriteFile("../output/output_xv.bin", *output4, outputXShapeSize_1 * dataType);
    INFO_LOG("Write output4 success");

    std::vector<aclFloat16> resultData5(size, 0);
    ret = aclrtMemcpy(resultData5.data(), resultData5.size() * sizeof(resultData5[0]), outputXADeviceAddr,
                    size * sizeof(aclFloat16), ACL_MEMCPY_DEVICE_TO_HOST);
    CHECK_RET(ret == ACL_SUCCESS, LOG_PRINT("copy result from device to host failed. ERROR: %d\n", ret); return FAILED);
    void** output5 = (void**)(&resultData5);
    //写出数据
    WriteFile("../output/output_xa.bin", *output5, outputXShapeSize_1 * dataType);
    INFO_LOG("Write output5 success");

    std::vector<aclFloat16> resultData6(size, 0);
    ret = aclrtMemcpy(resultData6.data(), resultData6.size() * sizeof(resultData6[0]), outputXGDeviceAddr,
                    size * sizeof(aclFloat16), ACL_MEMCPY_DEVICE_TO_HOST);
    CHECK_RET(ret == ACL_SUCCESS, LOG_PRINT("copy result from device to host failed. ERROR: %d\n", ret); return FAILED);
    void** output6 = (void**)(&resultData6);
    //写出数据
    WriteFile("../output/output_xg.bin", *output6, outputXShapeSize_1 * dataType);
    INFO_LOG("Write output6 success");


    auto size7 = GetShapeSize(outputhtShape);
    std::vector<aclFloat16> resultData7(size7, 0);
    ret = aclrtMemcpy(resultData7.data(), resultData7.size() * sizeof(resultData7[0]), outputhtDeviceAddr,
                    size7 * sizeof(aclFloat16), ACL_MEMCPY_DEVICE_TO_HOST);
    CHECK_RET(ret == ACL_SUCCESS, LOG_PRINT("copy result from device to host failed. ERROR: %d\n", ret); return FAILED);
    void** output7 = (void**)(&resultData7);
    //写出数据
    WriteFile("../output/output_ht.bin", *output7, outputhtShapeSize_1 * dataType);
    INFO_LOG("Write output7 success");

    // 6. 释放aclTensor，需要根据具体API的接口定义修改
    aclDestroyTensor(inputX);
    aclDestroyTensor(inputrwkvag);
    aclDestroyTensor(inputh0);
    aclDestroyTensor(outputXR);
    aclDestroyTensor(outputXW);
    aclDestroyTensor(outputXK);
    aclDestroyTensor(outputXV);
    aclDestroyTensor(outputXA);
    aclDestroyTensor(outputXG);
    aclDestroyTensor(outputht);

    // 7. 释放device资源，需要根据具体API的接口定义修改
    aclrtFree(inputXDeviceAddr);
    aclrtFree(inputrwkvagDeviceAddr);
    aclrtFree(inputh0DeviceAddr);
    aclrtFree(outputXRDeviceAddr);
    aclrtFree(outputXWDeviceAddr);
    aclrtFree(outputXKDeviceAddr);
    aclrtFree(outputXVDeviceAddr);
    aclrtFree(outputXADeviceAddr);
    aclrtFree(outputXGDeviceAddr);
    aclrtFree(outputhtDeviceAddr);
    if (workspaceSize > 0) {
        aclrtFree(workspaceAddr);
    }
    aclrtDestroyStream(stream);
    aclrtResetDevice(deviceId);
    aclFinalize();

    return SUCCESS;
}
